I can’t find any directions for actually making one, but a nostepinne (another name for a ball winder) should be pretty easy to make… especially if you are a turner. Here is a link that shows how to use one that might help.Nostepinne Further searching should provide you some dimensions.

It kind of looks like the o-ring driving the pulley under the ball is around a fixed shaft that the rest of the mechanism rotates about. that would turn the ball a small fraction of a turn for each revolution of the tilted ball (the motion that winds a diagonal wrap of yarn) so the wraps progress around the ball.

after a closer look it may be that the o-ring is a tire that just presses against the fixed center shaft or perhaps a small ball on the end of it. in any event the shaft holding the ball at a 45* angle is turned slightly each revolution around the vertical shaft that is hollow with a fixed shaft coaxial in it

sorry for the awkward explanation: I can visualize it but am having trouble describing it.

this link has one made of Legos. I do think that the o-ring is used as a tire to drive the gray disk that turns the coil. that would correspond with the bevel gear in the lego one

One step further on GMmans post.I watched the video link and the woman in the video,Lisa Boyer, gives the website to order the plans.The plans are by Clayton Boyer who makes and sells plans for wooden gear clocks.Thanks for the post GMman : )